Fujitsu Corporation

Fuji Xerox Co., Ltd.

Daiwa Seiko, Inc.

Kazuyasu Sato

Yoshinori Kakiuchi

Makoto Tsuchida

Takashi Maekawa

Harumichi Oishi

Mitsuru Yamazaki

Yoshiya Ishiyama

Osamu Kajitani

Shinzo Tanaka

Takuzou Ikeyama

Akinori Murata

An object of the present invention is to provide a feeder, image-forming device, and remaining amount detecting method that allows a user to simply and effectively determine upon issuing a print command whether the print command will be executed completely without a loss of paper. The inventive feeder for feeding a recordable medium to a processor part that performs a process comprises: a sheet placement part that can accommodate a plurality of the recordable media in a stack of layered sheets, and rotate and shift to a suitable position for feeding the recordable media to the processor part; and a shift amount indicator part that is configured to rotate in a direction of rotation of the sheet placement part as the sheet placement part rotates, so as to enable a shift amount of the sheet placement part corresponding to a remaining amount of the recordable media to be electrically transmitted to an external device.

Feeder, image-forming device, and remaining amount detecting method

Disclosed are a single-side image forming device with a sheet inverting unit attached thereto for image forming on the reverse side of a sheet, and a double-side image forming apparatus that employs such a sheet inverting unit. The sheet inverting unit is detachable from an image forming apparatus, which has a sheet cassette; an image forming mechanism; a stacker; and a feeding path along which the sheet supplied from the sheet cassette is conveyed first to the image forming mechanism and then to the stacker. The sheet inverting unit comprises a switching lever for selectively guiding the image bearing sheet either toward the stacker or upward of the image forming device; switchback rollers for feeding the sheet guided upward by the switching lever and then inversely feeding the sheet; a guide path, which extends from the switchback rollers to a terminus in the vicinity of an inserting port of the image forming device; and feeding rollers provided along the guide path. The double-side image forming apparatus comprises: an image forming device, which has a sheet cassette, an image forming mechanism, a stacker, a feeding path along which the sheet is conveyed first to the image forming mechanism and then to the stacker, a manual inserting port, and a manual inserting path along which is conveyed an inserted sheet from the manual inserting port to the upstream origin of the feeding path for the image forming mechanism; and a sheet inverting unit that is structured as described above.

Sheet inverting unit and an imaging forming apparatus employing the same

Printer

Growing community of inventors

Kawasaki, Japan

Kazuyasu Sato